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Restructuring-Related Expenses - Schedule of Restructuring Accruals (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Summary of activity for expenses related to the restructuring accruals      
Beginning balance $ 26.2 $ 73.3  
Expenses 152.3 36.8 $ 115.5
Cash payments   (82.7)  
Non-cash benefits/(charges)   (1.2)  
Ending balance   26.2 73.3
Severance and Related Employee Benefits      
Summary of activity for expenses related to the restructuring accruals      
Beginning balance 24.9 71.2  
Expenses 109.8 11.8  
Cash payments   (58.7)  
Non-cash benefits/(charges)   0.6  
Ending balance   24.9 71.2
Facility Relocations and Closures, Consulting, and Other      
Summary of activity for expenses related to the restructuring accruals      
Beginning balance 1.3 2.1  
Expenses $ 42.5 25.0  
Cash payments   (24.0)  
Non-cash benefits/(charges)   (1.8)  
Ending balance   $ 1.3 $ 2.1